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40 条记录 (耗时 0.022 秒)

    Flexible multi-layered armor
    3.
    发明授权
    Flexible multi-layered armor 失效
    灵活多层装甲

    公开(公告)号：US5175040A

    公开(公告)日：1992-12-29

    申请号：US701337

    申请日：1991-05-10

    申请人： Gary A. Harpell ,  Dusan C. Prevorsek ,  Hsin L. Li

    发明人： Gary A. Harpell ,  Dusan C. Prevorsek ,  Hsin L. Li

    IPC分类号： B05B7/24 ,  B32B7/04 ,  F24F6/14 ,  F41H5/04

    CPC分类号： F24F6/14 ,  B05B7/24 ,  B32B7/04 ,  F41H5/0485 ,  Y02B30/545 ,  Y10S428/911 ,  Y10T428/24124 ,  Y10T428/2495

    摘要： The present invention is a flexible impact resistant article comprising a plurality of prepreg packets. Each prepreg packet comprises at least about 2 prepreg layers. Each prepreg layer comprises a plurality of coplanar fibers embedded in a polymeric matrix. There is a means to maintain at least a portion of each prepreg packet in successive layers. The prepreg packets are unattached to each other over a portion of their adjacent areas, preferably over a substantial portion of their adjacent areas. The plurality of packets results in improved flexibility.

    摘要翻译： 本发明是一种具有多个预浸料包的柔性耐冲击制品。 每个预浸料包括至少约2个预浸料层。 每个预浸料层包括嵌入聚合物基质中的多个共面纤维。 存在在每个预浸料包的至少一部分中保持连续层的方法。 预浸料包在其相邻区域的一部分上彼此未连接，优选在其相邻区域的大部分上。 多个分组导致改进的灵活性。

    Flame resistant ballistic composite
    8.
    发明授权
    Flame resistant ballistic composite 失效
    耐火弹性复合材料

    公开(公告)号：US5167876A

    公开(公告)日：1992-12-01

    申请号：US623638

    申请日：1990-12-07

    申请人： Kwok W. Lem ,  Hong B. Chin ,  Young D. Kwon ,  Dusan C. Prevorsek ,  Hsin L. Li

    发明人： Kwok W. Lem ,  Hong B. Chin ,  Young D. Kwon ,  Dusan C. Prevorsek ,  Hsin L. Li

    IPC分类号： B32B5/12 ,  D04H13/00 ,  F41H5/04

    CPC分类号： B32B5/12 ,  F41H5/0485 ,  Y10S428/911 ,  Y10S428/912

    摘要： This invention relates to a fire retardant compound comprising at least one fibrous layer comprising a network of fibers such as high strength polyethylene or aramid fibers in a matrix such as a blend of a vinyl ester and a polyurethane, and a fire retardant layer comprised of a particulate fire retardant material which decompose an heating to a gaseous material such as magesium hydroxide dispersed in a matrix comprised of relatively high char yield resin such as cured phenolic cyanate resin.

    摘要翻译： 本发明涉及一种阻燃化合物，其包含至少一个纤维层，所述纤维层包含基质如乙烯基酯和聚氨酯的共混物中的纤维如高强度聚乙烯或芳族聚酰胺纤维网，以及由 颗粒状阻燃材料，其将加热分解成气体材料，例如分散在由相对高的焦炭产率树脂（例如固化酚醛氰酸酯树脂）组成的基质中的氢氧根分子。

    Apparatus for extruding small quantities of material
    10.
    发明授权
    Apparatus for extruding small quantities of material 失效
    用于挤出少量材料的装置

    公开(公告)号：US4695240A

    公开(公告)日：1987-09-22

    申请号：US596497

    申请日：1984-04-04

    申请人： Hsin L. Li ,  Dusan C. Prevorsek

    发明人： Hsin L. Li ,  Dusan C. Prevorsek

    IPC分类号： B29C47/08 ,  B29C47/58 ,  B29C47/80 ,  B29C47/82 ,  B30B11/24 ,  B29C47/00

    CPC分类号： B29C47/585 ,  B29C47/0801 ,  B29C47/788 ,  B29C47/82 ,  B29C47/822 ,  B30B11/241 ,  B29C47/0009

    摘要： A mini-extruder apparatus for extruding small quantities of material. The apparatus is designed to overcome the problems of excessive heat transfer from the heated portion of the barrel to the feed portion of the extruder barrel and the premature failure of the long thin extruder screws employed in extruders. The mini-extruder includes an extruder barrel having a substantially circumferential, radially extending cavity formed in an isolator portion of the extruder barrel to thermally isolate the feed portion from the heated portion. The mini-extruder also includes a drive system constructed to drive the extruder screw at both ends. The mini-extruder can also be designed as a co-rotating or counter-rotating twin screw extruder where each end of each extruder screw is driven.

    摘要翻译： 用于挤出少量材料的微型挤出机装置。 该设备被设计成克服了从筒的加热部分到挤出机筒的进料部分的过度热传递以及挤出机中使用的长薄挤出机螺杆的过早失效的问题。 该微型挤出机包括挤出机筒，该挤出机筒具有形成在挤出机筒的隔离部分中的基本上圆周的径向延伸的空腔，以将进料部分与加热部分进行热隔离。 微型挤出机还包括驱动系统，其驱动两端的挤出机螺杆。 微型挤出机也可以被设计为同向旋转或反向旋转的双螺杆挤出机，其中每个挤出机螺杆的每一端被驱动。